package com.waves.design.iterator;

import java.util.ArrayList;
import java.util.List;

public class Client {

    public static void main(String[] args) {

        List<Object> products = new ArrayList<>();
        products.add("倚天剑");
        products.add("屠龙刀");
        products.add("断肠草");
        products.add("葵花宝典");
        products.add("四十二章经");

        AbstractObjectList list;
        AbstractIterator iterator;

        list = new ProductList(products);
        iterator = list.createIterator();
        System.out.println("正在遍历");
        while(iterator.isLast()){
            System.out.println(iterator.getNextItem() + ",");
            iterator.next();
        }

        System.out.println("--------------");
        System.out.println("逆向遍历");
        while (iterator.isFirst()){
            System.out.println(iterator.getPreviousItem() + ",");
            iterator.previous();
        }
    }
}
